| 1. | The idler light is then made to beat with the pump light, the latter is converted into additional amounts of idler and signal light .
无效光与抽运光成拍，抽运光又转换成更大量的无效光和信号光。 |
| 2. | 2 . we measure the down - conversion ring with ccd and analysis the thickness of the down - conversion ring . 3
分析了抽运光的走离效应和群速失配对下转换过程的影响。 |
| 3. | Simulation results show that the phase - shift between pumping and signal light in psa results in descending of soliton pulse amplitude
仿真结果表明：抽运光与信号光之间的相位漂移将导致孤子脉冲幅度下降。 |
| 4. | The maximum 50500 photo counts per second with 76mhz pump pulse frequency is detected . the probability to be single - photon state of every count is better than 99 % 5
在抽运光脉冲重复频率为76mhz的情况下，得到了每秒50500次的下转换光子记数，其中单光子概率大干99 。 |
| 5. | The effect of pump beam ' s walk - off and the group - velocity - mismatch in bbo crystal is discussed , the group - velocity - mismatch can be compensated by non - collinear phase - match when the angle between signal and idler beams equals to 14 . 4
当下转换光与抽运光夹角达到13 . 4度时，非共线相位匹配基本可以消除晶体中群速失配对下转换过程的影响。 |
| 6. | The effect of phase - shift between pumping and signal light on the transmission performance of dynamic - soliton system using phase sensitive amplifier ( psa ) as on - line amplifiers is theoretically analyzed by computer simulation
摘要采用计算机系统仿真方法，研究抽运光与信号光之间的相位漂移对在线放大器为相敏光放大器的动态孤子传输性能的影响。 |
| 7. | In this paper , dual - beam transmission problem that possess to a certainty included angle and gains the nonlinear schrdinger coupled equation ( nnlse ) in self - defocusing media is discussed
摘要自散焦介质中双光束斜入射耦合能发生光束偏转，通过数值模拟发现在非线性折射率不是均匀分布时光束偏转能降低抽运光功率并且偏转角度不减小，在相同的功率条件下，能产生更大的偏转。 |
| 8. | The relationship of cut - angle and the degree between pump beam and signal beam in bbo crystal pumped by 425nm pulse is theoretically calculated . 28 . 7 cut - angle bbo crystal is chose for our use , which correspond to a 5 angle between pump beam and signal beam
在中心波长425nm飞秒脉冲抽运、下转换光频率简并的情况下，选择晶体的切割角为28 . 7度，对应下转换光与抽运光在晶体外夹角为5度。 |
| 9. | The results indicate that for the same pump intensity , the temperature and thermal stress distribution in the disk are not only related with the medium ' s geometry and the special distribution of pump intensity but also related with the fill factor of pump area
结果表明，在相同的抽运功率密度下，激光介质中的温度分布和热应力分布不仅与激光介质几何构型及抽运光空间分布有关，还与抽运光斑在介质表面的填充因子密切相关。 |
| 10. | When the fill factor is less than 1 , the concentrated tensile stress appeares near edge of disk surface , while the fill factor reaches up to 1 , the surface exhibites compressive stress , and the center is less tensile stress
当抽运光斑未充满激光介质时，介质的表面靠近边缘处会出现大的拉应力集中，并且介质表面的最大轴向位移和最大拉应力随光斑填充因子增大而增大；而当抽运光充满介质时，表面是压应力，较小的拉应力存在于介质内部。 |
